[ntp:questions] How to get shared memory access from gpsd to ntpd to work?

Martin Burnicki martin.burnicki at burnicki.net
Wed Aug 23 11:26:05 UTC 2017

Etaoin Shrdlu wrote:
> I had to build the gpsd clients manually since this is a headless
> system, and the package in the repo depends on X (due to it including
> some Gnome apps), but I got them now and you're right ntpshmmon returns
> nothing: 
> /gpsd-3.16# ./ntpshmmon
> ntpshmmon version 1
> #      Name   Seen@                Clock                Real               L Prec

I haven't worked much with gpsd and NMEA, but could the reason be that
your GPS receiver doesn't claim to be synchronized, and thus its data
isn't fed into ntpd's SHM segment?


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